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Finding the Fourth Proportional to 229,716.80, 344,056.80 and 136,404.80

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Solution

The fourth proportional to 229,716.80, 344,056.80 and 136,404.80 is: 204,299.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,716.80 : 344,056.80 = 136,404.80 : x
  2. Step 2: Convert to fraction form
    229,716.80/344,056.80 = 136,404.80/x
  3. Step 3: Cross multiply
    229,716.80x = 344,056.80 × 136,404.80
  4. Step 4: Simplify right side
    229,716.80x = 46,930,998,992.64
  5. Step 5: Solve for x
    x = 46,930,998,992.64/229,716.80
  6. Step 6: Final answer
    x = 204,299.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.